1,Water pipe machine 2,Nearly twenty years experience 3,Export to Southeast Asia, Europe, Africa 4,Plastic pipe 5,CE SJ90PVC coated water pipe production line 1.SJ90/28 single screw extruder 1set Heat-drying machine 1set Center height 1000mmGear box Lubrication type circulating pumpCylinder and screw Screw diameter Φ90mm Screw L/D ratio 28/1 Screw material 38GrMoALA Heat treatment type nitriding ...